cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations locale/LC_NUMERIC_MASK.c -o locale/LC_NUMERIC_MASK -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lintl -liconv
locale/LC_NUMERIC_MASK.c:3:2: error: #error "LC_NUMERIC_MASK is not defined"
    3 | #error "LC_NUMERIC_MASK is not defined"
      |  ^~~~~